No he is thinking of Phenfen or Fenphen or whatever it was. And yes, that was killing people and was pulled from the market. Ephedra WAS banned, but as far as I know isn't banned any longer. And I don't think it would have a huge influence on the roll, but it would have some. It might make it speedier, it may increase negative effects such as jaw clenching or teeth grinding, stuff like that. I'd be careful, MDMA is taxing enough on your kidney, heart, and liver, combining it with another stimulant is just going to be added stress. It will also dehydrate you worse then MDMA would alone, which can lead to trouble so stay well hydrated. Please note that while Phentermine will most likely not have a huge effect in combination with MDMA, most E pills are NOT MDMA. In fact the majority of the pills out there these days are already a combo of stimulants. A lot of pills have meth, or caffeine, ephedra, or even amphetamines. I've also seen things like Benadryl, Ketamine, Fentanyl, and even RC's such as mcpp. These in combination with Phentermine could be very dangerous or even deadly. Also, please note that while even MDMA and Phentermine could be safe, we are not doctors, and certainly not your personal physician. We can not definitively say you will be ok, so don't take our advise as law. No one here needs to get sued if anything goes wrong. Just thought I'd throw that in there.